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108 results about "Aortic stent" patented technology
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An aortic stent, also called an aortic stent graft, is a metal skeleton inside a fabric graft. A graft works by exerting pressure against the portions of the artery above and below the aneurysm to cut off circulation to the aneurysm.
Tapered endovascular stent graft and method of treating abdominal aortic aneurysms and distal iliac aneurysms
An endovascular stent graft is provided for use in treating abdominal aortic aneurysms. The endovascular stent has a tapered section which allows it to accommodate markedly large aortas such as the abdominal aorta and still connects to standard modular aortic stent grafts. Methods of utilizing the stent to treat abdominal aortic aneurysms and distal iliac aneurysms are also provided.
Owner:COOK MEDICAL TECH LLC
Tapered endovascular stent graft and method of treating abdominal aortic aneurysms and distal iliac aneurysms
The present invention relates to an improved endovascular stent. The endovascular stent is to be used in treating abdominal aortic aneurysms. The endovascular stent has a tapered section which allows it to accommodate markedly large aortas such as the abdominal aorta and still connect to standard modular aortic stent grafts. Methods of utilizing the stent to treat abdominal aortic aneurysms and distal iliac aneurysms are also provided.
Owner:COOK MEDICAL TECH LLC
Biluminal endovascular graft system
An endovascular graft system used to repair aneurysms in arteries which bifurcate such as the aorta which bifurcates at the aortoiliac junction. The graft system includes two legs, each defining a lumen. Each leg comprises an aortic stent, a graft component and an iliac stent. The graft component is affixed at one end to the aortic stent and at the other end to the iliac stent. Each leg of the graft system is preferably a mirror image of the other with the exception of the aortic stents. The graft component of each leg includes a means for allowing in situ adjustment of the length of the leg to accommodate the different sizes required for different patients.
Owner:CARDINAL HEALTH SWITZERLAND 515 GMBH
Thoracic aortic stent graft deployment device
ActiveUS6939370B2Prevent movementPrevent forward movementStentsEar treatmentThoracic aortaStent grafting
A stent graft deployment device adapted for release of a distal end (29) of a stent graft (25) before the proximal end (27) of the stent graft (25). The arrangement (15) allows movement of at least part of the deployment catheter (23) independently of movement of a proximal end release mechanism has a fixed handle (16) associated with a trigger wire release mechanism (6) and a sliding handle (17) to which the deployment catheter and a capsule (21) are fixed. The sliding handle (17) is mounted on the fixed handle (16) and can slide longitudinally with respect to the fixed handle (16).
Owner:COOK MEDICAL TECH LLC +1
Tapered and distally stented elephant trunk stent graft
An aortic stent graft and a method of deploying the aortic stent graft. The method comprises providing a tapered tubular graft having a distal end and a proximal end, providing at least one stent attached to the graft at a site adjacent the distal end of the graft, loading the graft into an introducer, inserting the introducer through an incision in the aorta, deploying the graft inside the aorta; and suturing the proximal end of the graft in place.
Owner:COOK INC
Modular stent graft and delivery system
A modular aortic stent graft and a modular branched stent graft, expandable between a compressed condition and an expanded condition, for assembling with each other at the treatment area of an aneurysm. The aortic stent graft includes at least one axial opening for receiving a branched segment of the branched stent graft. The branched stent graft includes a branched segment extending from an aortic segment thereof. The aortic segment of the branched stent graft is disposed inside the aortic stent graft, while the branched segment is disposed through the opening of the aortic stent graft in the expanded condition. A set of aortic stent grafts and branched stent grafts are provided in various dimensions to cater the needs for different patients.
Owner:YU CHUN HO
Modular stent graft and delivery system
InactiveUS20090099648A1Effective treatmentAvoid flowSuture equipmentsStentsStent graftingIliac Aneurysm
A modular aortic stent graft and a modular branched stent graft, expandable between a compressed condition and an expanded condition, for assembling with each other at the treatment area of an aneurysm. The aortic stent graft includes at least one axial opening for receiving a branched segment of the branched stent graft. The branched stent graft includes a branched segment extending from an aortic segment thereof. The aortic segment of the branched stent graft is disposed inside the aortic stent graft, while the branched segment is disposed through the opening of the aortic stent graft in the expanded condition. A set of aortic stent grafts and branched stent grafts are provided in various dimensions to cater the needs for different patients.
Owner:YU CHUN HO
Artificial valve displacement device and stent
The invention discloses a stent of an artificial valve displacement device. The stent is in a mesh cylindrical structure formed by an aorta stent, a valve stent and an outflow channel stent which are sequentially connected. Three hollow-out areas are distributed on the side wall of the valve stent and respectively correspond to the top ends of three valves during opening. At least two fixed lugs are arranged on the top edge of the aorta stent. The heights of the top edges of the fixed lugs are different from each other. The shape of a hollow-out area is round, oval or diamond. The artificial valve displacement device can be used for displacing a pathological heart valve without a surgical operation, passes through blood vessels during displacement and is transplanted into the heart through femoral artery; and the heart and the aorta are incised without the operation. It is convenient to transplant, has long service life and favorable positioning effect, not only reduces the difficulty of the operation, but also realizes the recovery.
Owner:VENUS MEDTECH (HANGZHOU) INC
Branching type aortal vascular stent system
ActiveCN102641164AWon't blockAvoid the risk of ischemiaStentsBlood vesselsAscending aortaAortic arch
The invention discloses a branching type aortal vascular stent system comprising an aortal vascular stent and three branch arterial vascular stents, wherein a concave part is formed in the middle section of the aortal vascular stent, and provided with three side holes; and the three branch arterial vascular stents are separately mounted in the three side holes. The branching type aortal vascular stent system is capable of isolating aortal lesion involving the aortic arch and the ascending aorta, reestablishing the blood flow of the branch artery and avoiding the customization of the stent; and the branching type aortal vascular stent system is suitable for batch production and can be used for emergency operations.
Owner:舒畅 +1
Aortic-arch covered stent-graft
The invention discloses an aortic-arch covered stent-graft, which comprises an aortic stent-graft and three branch artery stent-grafts, wherein a sunk part is arranged in the aortic stent-graft and comprises a left-side wall close to a proximal end, a right-side wall far away from the proximal end and a bottom wall for connecting the left-side wall with the right-side wall; two openings are arranged on one side wall in the left-side wall with the right-side wall of the sunk part, and one or two openings are arranged in the other side wall; an inner chimney graft with a caliber comparative with the openings is fixedly arranged in each opening; and the branch artery stent-grafts are respectively arranged in the chimney grafts. The stent-graft system with the structure can isolate aortic lesions involving the aortic arch and the ascending aorta and reconstruct the blood flow of branch arteries, is suitable for various normal and changing blood vessels, has a wide range of application, avoids customized stents, and can be in mass production. The time is effectively saved, and the operation is easy.
Owner:ZHONGSHAN HOSPITAL FUDAN UNIV
Three-collateral bracket vascellum for arcus aortae
InactiveCN101152109AReduce the incidence of injuryReduce the chance of bleedingStentsBlood vesselsLeft subclavian arteryBlood vessel
The present invention relates to aortic arch three collateral support blood vessels comprising an aorta support vascular that comprises an aorta ascenden section, an aortic arch section and an aorta section; the aorta support vascular also comprises three collateral artery support vasculars which are fixed respectively on an aortic arch section arc surface of the aorta support vascular and are formed into an five-way type. The three collateral artery support vasculars are corresponding respectively to an arteria anonyma, a left common carotid artery and a left subclavian artery. The invention is capable of greatly simplifying an operation process and greatly shortens the time of a deep hypothermia and a circulation arrest, which is characterized by not only omitting an inosculation between an artificial vascular graft and three branches of the aortic arch but also reducing bleeding rate and operation risk. In an operation, the invention changes an operation method from a partial blood vessel replacement plus partial endovascular repair to a complete endovascular repair.
Owner:黄方炯
Iliac leg extension stent graft
A stent graft leg extension (10) to extend from a bifurcated aortic stent graft into an iliac artery. The stent graft has a tubular body. (12) of a biocompatible graft material and a plurality of self-expanding stents (14) joined to and supporting the tubular body. An uncovered tubular self-expanding stent assembly (26) extends from a first end of the tubular body and is fastened thereto. The uncovered tubular self-expanding stent assembly (26) provides a smooth transition from the leg extension into the iliac artery to reduce the chance of kinks causing problems in the leg extension.
Owner:THE CLEVELAND CLINIC FOUND +1
Modular stent graft and delivery system
A modular aortic stent graft and a modular branched stent graft, expandable between a compressed condition and an expanded condition, for assembling with each other at the treatment area of an aneurysm. The aortic stent graft includes at least one axial opening for receiving a branched segment of the branched stent graft. The branched stent graft includes a branched segment extending from an aortic segment thereof. The aortic segment of the branched stent graft is disposed inside the aortic stent graft, while the branched segment is disposed through the opening of the aortic stent graft in the expanded condition. A set of aortic stent grafts and branched stent grafts are provided in various dimensions to cater the needs for different patients.
Owner:余俊豪
Aortic-arch covered stent-graft vessel
The invention discloses an aortic-arch covered stent-graft, which comprises an aortic stent-graft and three branch artery stent-grafts, wherein a sunk part is arranged in the aortic stent-graft and comprises a left-side wall close to a proximal end, a right-side wall far away from the proximal end and a bottom wall for connecting the left-side wall with the right-side wall; two openings are arranged on one side wall in the left-side wall with the right-side wall of the sunk part, and one or two openings are arranged in the other side wall; an inner chimney graft with a caliber comparative with the openings is fixedly arranged in each opening; and the branch artery stent-grafts are respectively arranged in the chimney grafts. The stent-graft system with the structure can isolate aortic lesions involving the aortic arch and the ascending aorta and reconstruct the blood flow of branch arteries, is suitable for various normal and changing blood vessels, has a wide range of application, avoids customized stents, and can be in mass production. The time is effectively saved, and the operation is easy.
Owner:ZHONGSHAN HOSPITAL FUDAN UNIV
Low-profile modular abdominal aortic aneurysm graft
InactiveUS20100305686A1Easy to installAmeliorate intralumenal aneurysmsStentsBlood vesselsSystems approachesAortic stent
Systems methods and devices address and ameliorate intralumenal aneurysms by excluding the same through endograft by pass techniques. Percutaneuous emplacement, use of improved aortic-stent assemblies and shotgun neck framing facilitates placement of modular graft sections, for example, to treat abdominal aortic aneurysms.
Owner:ALTURA MEDICAL
Branch stent graft for aortic aneurysm repair
Described is a method for deploying a stent-graft in the aorta, the method including positioning a shunt to go along a portion of a brain-supplying artery (BSA) into the aorta; deploying a stent-graft in the aorta along a portion of the shunt; and removing the shunt. Also described is a removable shunt adapted for deployment along a brain-supplying artery into an aorta to supply blood to the artery during deployment of a stent-graft in the aorta, the removable shunt including a stiff segment that is stiff enough to remain at least partially open when between the aorta and the stent-graft and large enough to allow sufficient blood supply to the brain during the deployment of the stent-graft; and a mechanism for facilitating safe removal of the shunt from between the stent-graft and the aorta. Also described is a method of deploying a branch stent graft having a flaring portion in a blood vessel branching at a bifurcation from an aorta to connect to an aortic stent graft deployed in the aorta across the bifurcation, a branch stent-graft useful in the method, and a delivery system useful in the method.
Owner:MEDICAL RES FUND OF TEL AVIV SOURASKY MEDICAL CENT
Method for implementing aortic stent in-vitro fenestration by virtue of 3D printing model
InactiveCN106618795AExact copyImprove practicalityStentsAdditive manufacturing apparatusIn vivoData format
The invention relates to a method for implementing aortic stent in-vitro fenestration by virtue of a 3D printing model. The method comprises the following processing steps: acquiring CT or nuclear magnetism imaging data of aorta and branches of a patient, and processing the data into a data format which is recognizable for a 3D printer; transmitting the processed data to the 3D printer and printing the data by virtue of the printer; polishing an obtained mode; disinfecting the mold at normal temperature and keeping the disinfected mode on an operating table; placing an aortic stent graft in the mold, and making marks on the stent in accordance with positions and sizes of branched artery orifices; taking out the stent and conducting fenestration reforming in accordance with the marks; re-installing the reformed stent in a conveyor; and releasing the stent in vivo, and finally reconstructing branched arteries by virtue of a window. With the application of the method provided by the invention, the indication scope of an endovascular repair technology is widened, the efficiency and the accuracy of the aortic stent in vitro fenestration are enhanced, the occurrence rate of complications is reduced and operation safety is improved.
Owner:BEIJING JIKESAN FULL VISION TECH CO LTD +2
Method for forming aortic stent graft
InactiveCN106491241AEfficient preparationMade preciselyStentsAdditive manufacturing apparatusAorta partDip-coating
The invention discloses a method for forming an aortic stent graft. The method comprises the following steps: acquiring an image of aorta, and extracting a three-dimensional (3D) model of the aorta according to the image; extracting diameter characteristics of the aorta in the axial direction of the aorta of the 3D model; reconstructing an aortic vascular model according to the extracted diameter characteristics; 3D-printing a water-soluble vascular inner core according to the aortic vascular model; dip-coating a polymer film on a surface of the water-soluble vascular inner core; spirally weaving a metal mesh outside the treated water-soluble vascular inner core as a metal stent; bonding the polymer film and the metal stent, and then removing the water-soluble vascular inner core to obtain the aortic stent graft. The method provided by the invention can efficiently and accurately manufacture a vascular stent graft according to the actual size of a thoracic descending aorta of a patient based on a 3D printing technology, can effectively solve a detect that an existing equal-diameter vascular stent does not match a true vascular size of the patient, provides an effective medical means for treatment of acute vascular aneurysm, and has important clinical value.
Owner:TSINGHUA UNIV +1
Method of implanting an aortic stent
A method of implanting an aortic stent comprising steps of: putting a main tube on a metal guide wire; moving the main tube along the metal guide wire to the descending aorta, the main tube is constrained by a first cover, and first and second tube bifurcations are branched from the main section; removing the first cover; inserting a second and third metal guide wire through the first tube bifurcation into the ascending aorta and branchiocephalic artery respectively; a first and a second tube branch moving into the ascending aorta and the branchiocephalic artery respectively; inserting a fourth and fifth metal guide wire through the first tube bifurcation into the ascending aorta and branchiocephalic artery respectively; a third and a fourth tube branch moving into left common carotid artery and the left subclavian artery respectively; removing a second cover constraining said tube branches.
Owner:VICTOR ACTION LTD
Aorta covered stent interventional operation simulator
InactiveCN105943160AHigh simulationStentsComputer-aided planning/modellingHuman bodyConnective tissue fiber
Owner:BEIJING UNIV OF TECH
Conveniently-implantable artificial valve replacement device and scaffold
ActiveCN101953728AEasy to implantExtended service lifeStentsHeart valvesInlet flowBiomedical engineering
The invention discloses a conveniently-implantable artificial valve replacement device and a scaffold. The scaffold has a reticulated cylindrical structure consisting of an aorta scaffold, a valve scaffold and an inlet flow channel scaffold connected in turn, wherein the top edge of the aorta scaffold is provided with at least two fixing lugs, and the projection position, of the top edge of each fixing lug, on the axial line of the scaffold is in crisscross distribution, namely the heights of the top edges of a plurality of the fixing lugs are inconsistent, and each two of the heights are different. The artificial valve replacement device and the scaffold are convenient for implantation, and can be positioned and used for a plurality of times.
Owner:VENUS MEDTECH (HANGZHOU) INC
Aortic stent
InactiveCN105997298AAchieve healingAchieve one-time treatmentStentsBlood vesselsBlock dissectionCovered stent
The invention discloses an aortic stent. The aortic stent comprises a covered stent used for blocking dissection splits, and the covered stent is connected with a bare stent. The covered stent comprises a covered stent body and a covering membrane connected with the covered stent body. The aortic stent further comprises an operating end stent for lengthening and fixing, and the operating end stent is connected with the covered stent or the bare stent. The aortic stent can be applied to dissections involved in important branch vessels, and can also avoid the problem that after a stent is implanted into a highly-bent aortic vessel, secondary distal or proximal splits are caused.
Owner:黄连军 +1
Branch stent graft for aortic aneurysm repair
InactiveUS20100057096A1Good removal effectSmooth releaseStentsEar treatmentStent graftingAortic aneurysm repair
Described is a method for deploying a stent-graft in the aorta, the method including positioning a shunt to go along a portion of a brain-supplying artery (BSA) into the aorta; deploying a stent-graft in the aorta along a portion of the shunt; and removing the shunt. Also described is a removable shunt adapted for deployment along a brain-supplying artery into an aorta to supply blood to the artery during deployment of a stent-graft in the aorta, the removable shunt including a stiff segment that is stiff enough to remain at least partially open when between the aorta and the stent-graft and large enough to allow sufficient blood supply to the brain during the deployment of the stent-graft; and a mechanism for facilitating safe removal of the shunt from between the stent-graft and the aorta. Also described is a method of deploying a branch stent graft having a flaring portion in a blood vessel branching at a bifurcation from an aorta to connect to an aortic stent graft deployed in the aorta across the bifurcation, a branch stent-graft useful in the method, and a delivery system useful in the method.
Owner:MEDICAL RES FUND OF TEL AVIV SOURASKY MEDICAL CENT
Method and Devices For Cardiac Valve Annulus Expansion
InactiveUS20070179602A1Reducing number of re-operationsRemove complicationsHeart valvesBone implantDilated aortic rootProsthesis
A method and apparatus is disclosed that allows a cardiac surgeon to temporarily and controllably dilate the aortic root using a thin walled spiral cylinder that is irreversibly dilated by an expansion apparatus. Following removal of the reversible expansive apparatus the irreversible dilation member temporarily remains in the expanded aortic root during aortic valve prosthesis placement with the irreversible dilation member at the level of the aortic annulus. Implantation sutures that had been previously placed are tied following the removal of the irreversible dilation member. The apparatus and method may be used to place a sub aortic stent for the treatment of sub aortic stenosis.
Owner:GENESEE BIOMEDICAL
Thoracic aortic stent structure
InactiveUS20120123526A1Complicated and difficult to operateStentsBlood vesselsThoracic aortaInsertion stent
A thoracic aortic stent structure, including a main stent having at least one sub-stent which is formed as a piece on the main stent; and a membrane covering the main stent and the at least one sub-stent, and having at least one side-opening corresponding to a free end of the at least one sub-stent. The membrane compresses the main stent and the at least one sub-stent, which causes diameter of the main stent and the at least one sub-stent narrower. Upon removing the membrane, the main stent and the at least one sub-stent can extend to reconstruct a vascular pathway. The thoracic aortic stent is able to simplify the process, of placement, save time and provide easy operation.
Owner:KO PO JEN +2
Valvular prosthetic replacement device with buffer action and stent
The invention discloses a valvular prosthetic replacement device with a buffer action and a stent. The stent comprises an aorta stent, a valve stent and a flowing channel stent. The stent is provided with a transition section stent and has a mesh-shaped cylindrical structure formed by sequentially connecting the aorta stent, the transition section stent, the valve stent and the flowing channel stent. The top edge of the aorta stent is provided with at least two fixing lugs. The top edges of the fixing lugs are different from each other in height. A transition section is arranged between the valvular prosthetic replacement device and the stent of the invention and can have a buffer action, protect the valve stent and an internal three-leafvalve and ensure seal performance for long-term use. The valvular prosthetic replacement device of the invention has good positioning effect, not only reduces the difficulty of surgery but also realizes recycling.
Owner:VENUS MEDTECH (HANGZHOU) INC
Aorta bracket with valve of recoverable and adjustable position
The invention relates to a recoverable position-adjusting aortic stent with valve, comprising a trumpet-shaped stent (1), an inner valve (2), and a control device; wherein, the trumpet-shaped stent (1) comprising a far-end big horn mouth (11), a middle waist (12) and a near-end small horn mouth (13), all carved with a hyperelastic nitimol tube into diamond mesh structure; the valve (2) is sewed between the near small horn mouth (13) and the middle waist (12). The diameter of the middle waist (12) is much smaller than the diameters of the far-end big horn mouth (11) and the near-end small horn mouth (13). The aortic stent has the advantages of convenient position adjusting, stent recovery, strong holding power, good hyperelasticity and compliance, easy compression, and is facilitated for inserting the pipe and unease to shift since the match between the stent and the root structure of the aorta, and avoids leaking around the valve.
Owner:SECOND MILITARY MEDICAL UNIV OF THE PEOPLES LIBERATION ARMY
Medical device delivery system and deployment method
An aortic stent-graft may include a tubular graft extending from a proximal end to a distal end, the graft comprising a proximal sealing portion and an intermediate portion, wherein a proximal end of the intermediate portion abuts the distal end of the proximal sealing portion. At least one sealing stent may be attached to the proximal sealing portion. A first fenestration window is disposed in the intermediate portion. The first fenestration window has a length determined by the equation L=1.23*D−24 millimeters, where L is the length of the first fenestration window. D is between about 24 millimeters and 45 millimeters.
Owner:COOK MEDICAL TECH LLC
Aortic valve stent with coronary artery and conveyor of same
Owner:TONGJI UNIV
Aortic intravascular stent
InactiveCN106983581AGood flexibilityGood medical effectStentsBlood vesselsEndovascular treatmentAscending aorta
The invention discloses an aortic vascular stent, comprising a flexible, telescopic and adjustable stent body extending axially conically into a tubular frame. , and a flexible and telescopic sub-support located in the middle of the support body, the main pipe frame includes a number of support rings distributed along the axial direction and gradually reduced or expanded, and the main pipe frame is covered with a film on the support ring. The sub-bracket includes a mesh body axially connected to the main-pipe frame. The aortic vascular stent can be adapted to the ascending aorta and the aortic arch to meet the endoluminal treatment of TADD. It has good flexibility, excellent torque adjustment ability, and can closely fit the torn intima of the ascending aorta and the aortic arch. Avoid covering the supraarch vessels at the corresponding aortic arch, which has a very good medical effect.
Owner:江门市众新思创医疗科技有限公司
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